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Published in Crop Sci 9:610-612 (1969)
© 1969 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Double-Cross Sugarbeet Hybrids Utilizing Pollen Restorers1

J. C. Theurer and G. K. Ryser2

Experimental studies in 1965 and 1966 indicated that double-cross restored hybrid sugarbeets, Beta vulgaris L, have excellent potential for commercial use. In isolated seed plots, the female parental single crosses averaged about 100 g of double-cross seed per plant. Forty-six experimental double crosses showed favorable performance for gross sugar, root yield, sugar percentage, and quality in relation to that of two currently used commercial cultivars. A method for production of the double-cross hybrid seed on a commercial scale is outlined.

Key Words: Seed production • Hybrid sugarbeet yield • Male-sterile hybrid

1 Cooperative investigations of the Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, the Beet Sugar Development Foundation, and the Utah State Agricultural Experiment Station approved as journal paper no. 876, Utah Agr. Exp. Sta., Logan, Utah.

2 Research Geneticist and Research Agronomist respectively, Crops Research Division, ARS, USDA. Crops Research Lab, Utah State University, Logan 84321

Received for publication March 6, 1969.




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